The length of the WEP key

In theory, WEP can be paired with any length of key, because RC4 does not require a specific length of key.

However, most products support one or two lengths of keys. The only 64-bit WEP seed (seed) that appears in the standard key length, where 40 bits are the passwords that are shared by two workstations when they are transferred. Different vendors address the standard WEP pattern in a variety of different names: standards WEP, 802.11-complicant WEP, 40+24-bit WEP, and even 64-bit WEP. I personally think that the final statement is purely misleading, which is to deceive consumers with a shared key, rather than the length of a shared key (Gkfx secret), but it seems to be a standard in the industry.

Another common practice is to use a longer key, which typically uses 128-bit's WEP seed, which is 104 secret. Some documents are called WEP-104, although propaganda is often called 128-bit WEP. Although rare, the use of a 128-bit length key is not unheard of, resulting in the length of the WEP seed becomes 152 bits. It is easy to confuse that this rare practice is often referred to as 128-bit WEP, because the key length differs, making it incompatible with WEP-104. One vendor even provides a 256-bit key, although it is doubtful that the practice will improve security.

Summary: The currently used WEP encryption lengths are:

(1) 64-bit WEP: Where the password length is 40 bits, i.e. (40/8=) 5 ASCII code.

(2) 128-bit WEP: Where the password length is 104 bits, i.e. (104/8=) 13 ASCII code.

The length of the WEP key